Hyundai Sonata: Knock Sensor (KS). Description and Operation
Description
Knocking is a phenomenon characterized by undesirable vibration and noise
and can cause engine damage. Knock Sensor (KS) is installed on the cylinder
block and senses engine knocking.
When knocking occurs, the vibration from the cylinder block is applied
as pressure to the piezoelectric element. When a knock occurs, the sensor produces
voltage signal. The ECM retards the ignition timing when knocking occurs. If
the knocking disappears after retarding the ignition timing, the ECM will advance
the ignition timing. This sequential control can improve engine power, torque
and fuel economy.
Camshaft Position Sensor (CMPS). Repair procedures
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification:
Refer to “Wave Form”
...
Knock Sensor (KS). Specifications
Specification
Item
Specification
Capacitance (pF)
850 ~ 1,150
...
See also:
Specifications
Specification
Engine
T/M
Joint type
Max. permissible angle
Outer
Inner
Outer
Inner
G ...
Paddle shifter
The paddle shifter is available when the shift lever is in the D position or
the sport mode.
With the shift lever in the D position
The paddle shifter can operate when the vehicle speed is mor ...
Rheostat. Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the lower crash pad switch (A) from the side crash pad
cover by usin ...
